Fwb!! Help!?

So I have a friend with benefits and we've been talking for a long while. He's always telling me how happy I make him and how he Likes me a lot and loves me and calls me cute names like "love" "sweetheart" but I don't know if I should believe him? I know he doesn't love me ( I don't believe in love) but I feel like he does like me possibly? But at the same time he could be saying all this stuff just so we can have sex. Then sometimes he's there calling me "bruh" "man" or "dude" 
I don't know I feel like I'm falling for him hard and he's becoming a huge priority in my life… I just don't want to be heart broken if he doesn't really care later on